A flexible Raspberry Pi based monitoring/dashboard system For years, I have been using various self-hosted services on my home network. Most of these services are small programs/tools that run on cheap single-board computers like a Raspberry Pi. Examples are e.g.:
a fine dust sensor based on an ESP8266 (see) an ADS-B receiver that provides flight data to ADS-B-Exchange a Pi that monitors my Internet using Prometeus and Grafana (source) a Grafana dashboard for my Synology NAS (Dashboard source) many other things (Roon endpoints, humidity sensors, etc.